Patents
Patents for H03G 3 - Gain control in amplifiers or frequency changers (20,162)
07/2007
07/17/2007US7245890 High frequency variable gain amplification device, control device, high frequency variable gain frequency-conversion device, and communication device
07/17/2007US7245881 System and method for antenna diversity using equal power joint maximal ratio combining
07/17/2007US7245588 Power normalization in WLAN receivers
07/17/2007US7245189 High linearity digital variable gain amplifier
07/17/2007US7245170 Attenuator and portable telephone terminal apparatus using the same
07/17/2007US7245169 Offset correcting method, offset correcting circuit, and electronic volume
07/12/2007WO2007079396A2 Digital pwm amplifier with simulation-based feedback
07/12/2007WO2007078991A2 System and method of detecting speech intelligibility and of improving intelligibility of audio announcement systems in noisy and reverberant spaces
07/12/2007WO2003094413A3 Digital audio production device
07/12/2007US20070160237 Amplifier apparatus and acoustic system
07/12/2007US20070160231 Effect adding method and effect adding apparatus
07/12/2007US20070160222 Positioning audio output for users surrounding an interactive display surface
07/12/2007US20070159258 Radiofrequency (rf) and/or microwave power amplification device and corresponding radiocommunication terminal
07/12/2007US20070159257 Method and apparatus for controlling a power amplifier in a mobile communication system
07/12/2007US20070159256 Timing controller and timing control method
07/12/2007US20070159244 Gain control methods and systems in an amplifier assembly
07/11/2007EP1806840A1 Adaptive gain adjustment of voice volume
07/11/2007EP1805891A1 Calculating and adjusting the perceived loudness and/or the perceived spectral balance of an audio signal
07/11/2007EP1805890A1 Speed- and user-dependent timbre and dynamic range control method, apparatus and system for automotive audio reproduction systems
07/11/2007EP1805752A2 Unnatural reverberation
07/11/2007EP1210767B1 Method and apparatus for automatically adjusting speaker and microphone gains within a mobile telephone
07/11/2007CN1998157A Controlling power in high-frequency transmitters
07/11/2007CN1326331C Method for controlling receive signal levels at network node in TDMA point to multi-point radio communications systems
07/10/2007US7242915 Timing based LNA gain adjustment in an RF receiver to compensate for intermodulation interference
07/10/2007US7242914 Method of automatic gain control for multiple receiver front-ends
07/10/2007US7242784 Dynamic gain control of audio in a communication device
07/10/2007US7242783 Audio limiting circuit
07/10/2007US7242779 Methods and apparatus for sub-harmonic generation, stereo expansion and distortion
07/10/2007US7242424 Digital TV receiving smart antenna control system and controlling method of the same
07/10/2007US7242251 Controllable amplifier circuit with a variable discrete-value gain, use of the amplifier circuit and method for operation of an amplifier whose gain can be adjusted in discrete values
07/10/2007US7242246 Amplitude detecting method, AGC circuit gain controlling method, amplitude detecting apparatus and AGC amplifier circuit
07/05/2007US20070155351 Receiving apparatus
07/05/2007US20070154037 Microphone-tailored equalizing system
07/05/2007US20070154021 Digital feedback to improve the sound reproduction of an electro-dynamic loudspeaker
07/05/2007US20070153937 Power control circuitary for a mobile terminal application
07/05/2007US20070152754 Method of fabricating phase change RAM including a fullerene layer
07/05/2007US20070152750 Digital PWM amplifier with simulation-based feedback
07/05/2007US20070152749 Transmission Circuit and Related Method
07/05/2007US20070152744 Variable gain voltage/current converter circuit having current compensation circuit for compensating for change in dc current flowing into active element for performing voltage/current conversion
07/04/2007EP1804414A1 Gain control method and device for a bursty data frame reception system
07/04/2007EP1804374A2 Switching amplifier
07/04/2007EP1803219A2 Method and apparatus for predictively optimizing efficiency of a radio frequency (rf) power amplifier
07/04/2007EP1803218A1 Method and apparatus for providing limiting power adjustment in a wireless communication system
07/04/2007EP1266469A4 Use of voice-to-remaining audio (vra) in consumer applications
07/04/2007CN1993900A Determining the current value of a transmission power of a radio telecommunication device
07/04/2007CN1993886A Low current direct conversion transmitter architecture
07/04/2007CN1993885A Transimpedance amplifier
07/04/2007CN1993883A Amplifier circuit with automatic gain correction
07/04/2007CN1992513A Effect adding method and effect adding apparatus
07/04/2007CN1324825C Optical signal receiving circuit and optical signal receiving semciconductor device
07/03/2007US7239856 Apparatus and method for compensating gain of an automatic gain controller
07/03/2007US7239678 Front end automatic gain control circuit using a control word generator
07/03/2007US7239205 High frequency amplifier circuit and mobile communication terminal using the same
06/2007
06/28/2007WO2007073259A1 Mixer circuit and rf transmitter using such mixer circuit
06/28/2007WO2007073253A1 Minimizing tx noise in rx for tdd systems
06/28/2007WO2006083403A3 Closed loop power control with high dynamic range
06/28/2007US20070147639 Hearing aid with digital compression recapture
06/28/2007US20070147626 Audible feedback of machine load
06/28/2007US20070147625 System and method of detecting speech intelligibility of audio announcement systems in noisy and reverberant spaces
06/28/2007US20070147554 Receiver and transmitter/receiver
06/28/2007US20070147541 Transmitter apparatus and wireless communication apparatus
06/28/2007US20070146076 Power amplifier unit, communication terminal and control method of power amplifier unit
06/28/2007US20070146075 Analog multistage amplification circuit in the field of sensor
06/28/2007US20070146074 Preserving linearity of an isolator-free power amplifier by dynamically adjusting gain
06/28/2007US20070146068 Device and method for controlling a voltage control signal
06/27/2007EP1801966A2 Determining an inter-slot power level
06/27/2007EP1614233A4 System, method, and circuit for dynamic range enhancement in a communication system
06/27/2007CN1988375A Gain variable circuit and automatic gain control amplifier using the same
06/27/2007CN1988374A Inductance control system and method for control sound volume
06/27/2007CN1988373A Device and method for controlling a voltage control signal
06/27/2007CN1323564C Method for automatically switching a profile of a mobile phone
06/26/2007US7236839 Audio decoder with expanded band information
06/26/2007US7236745 Transceiver power detection architecture
06/26/2007US7236600 Transmission of power and/or signalling between an audio distribution unit and a plurality of remote audio transducers
06/26/2007CA2425986C Selectively activated agc signal measurement unit
06/21/2007WO2007070239A1 Enhanced bandwidth envelope elimination and restoration
06/21/2007US20070142945 Interactive Sound Reproducing
06/21/2007US20070142012 Wireless communication receiver
06/21/2007US20070142006 Wide Dynamic Range Power Detection Scheme
06/21/2007US20070141982 Signal Distribution System Cascadable AGC Device and Method
06/21/2007US20070140511 Process of implementing low frequency of audio signal
06/21/2007US20070140502 Signal processing
06/21/2007US20070140501 Method for coding and decoding impulse responses of audio signals
06/21/2007US20070140362 Radio transmitter with reduced power consumption
06/21/2007US20070139119 Variable attenuator
06/21/2007US20070139118 Fast-settling digital automatic gain control
06/21/2007US20070139107 Enhanced bandwidth envelope elimination and restoration
06/21/2007DE19725459B4 Von externer Spannung unabhängiger Sperrvorspannungspegeldetektor Of external voltage independent Sperrvorspannungspegeldetektor
06/21/2007DE102005061002A1 Verfahren zur Steuerung einer Hörvorrichtung in Abhängigkeit einer Abschaltzeitdauer und entsprechende Hörvorrichtung Method for controlling a hearing apparatus as a function of a shut-off time and corresponding hearing device
06/20/2007EP1798885A1 Demodulating apparatus, receiving apparatus and demodulating method
06/20/2007EP1798852A2 Distortion compensation
06/20/2007EP1394960B1 Automatic gain control system for a multi-user ofdm digital transmission system using the electric grid
06/20/2007CN1985445A Digital video broadcast-terrestrial (DVB-T) receiver interoperable with a gsm transmitter in a non-interfering manner
06/20/2007CN1983806A Signal processing apparatus and signal processing method
06/20/2007CN1983805A Audio-frequency adjusting system
06/20/2007CN1983804A Audio-frequency processor and volume management
06/20/2007CN1322682C Selectively activated AGC signal measurement unit
06/19/2007US7233833 Method of modifying low frequency components of a digital audio signal
06/19/2007US7233673 In-line early reflection enhancement system for enhancing acoustics
06/19/2007US7233624 Method and system for all digital gain control
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